Chondromyxoid fibroma (CMF) is a rare, benign cartilaginous tumor, comprising less than 1% of primary bone tumors, and usually occurs in the metaphysis of a long tubular bone around the knee. We report a rare case of CMF of the rib. The patient was a 25-year-old man who visited the hospital for left upper back pain. Roentgenography revealed an 8-cm mass in the left upper lung field; computed to...

Primary neoplasms of the patella account for less than 1% of all primary bone tumors of the lower extremity, the most frequent of them being the giant cell tumor of bone, the chondroblastoma, and the aneurysmal bone cyst. Herein, we report the case of a 29-year-old woman with an active giant cell tumor of the patella (GCTP) with its clinical and radiological features and a brief review of the l...

An aneurysmal bone cyst involving the rib is very rare. Forty-four cases have been reported in the literature. Primary neoplasms of the ribs are uncommon and malignant tumours are significantly more common than benign tumours in this location. The condition is a rare benign, progressive bone tumour. The aetiology and natural history are unknown. The Authors report the case of a 38-year-old man ...

a mass in the anterior part of his right shoulder. Examination revealed a well-circumscribed lesion over the central one-third of the right clavicle, measuring approximately 8 × 7 cm. The mass was firm, nonpulsatile and immobile, appearing to be contiguous with, and fixed to, the clavicle. A plain radiograph of the clavicle is shown in Fig. 1 and a representative magnetic resonance image in Fig...

Aims At the histological level, the differential diagnosis of osteoblastic bone tumors is characterized by several problems that cannot be solved by conventional histological methods, including immunohistology. Differentiating aneurysmal bone cyst from telangiectatic osteosarcoma or giant cell tumor from giant cell-containing highly malignant osteosarcoma are only two examples reflecting the co...

The aneurysmal bone cyst is a benign pseudotumor that often arises off the center of long bones metaphysis and which as it grows can blow out bone. most widespread etiopathogenic theory reaction process to venous malformation but neoplastic currently being discussed since discovery translocation t (16; 17) (q22; p13) recurrent in primary cysts. We report here case 26-year-old patient without me...